216147282 has 48 divisors (see below), whose sum is σ = 495681120. Its totient is φ = 62589696.

The previous prime is 216147277. The next prime is 216147301. The reversal of 216147282 is 282741612.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10969 + ... + 23507.

It is an arithmetic number, because the mean of its divisors is an integer number (10326690).

Almost surely, 2^216147282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216147282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247840560).

216147282 is an abundant number, since it is smaller than the sum of its proper divisors (279533838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216147282 is a wasteful number, since it uses less digits than its factorization.

216147282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12587 (or 12574 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 216147282 is about 14701.9482382438. The cubic root of 216147282 is about 600.1363412383.

Adding to 216147282 its reverse (282741612), we get a palindrome (498888894).

The spelling of 216147282 in words is "two hundred sixteen million, one hundred forty-seven thousand, two hundred eighty-two".